Can I make CM7 themes work on other roms?

[prelude884]

I am having issues getting the themes to show up on CM7. I have downloaded two from the market but when I go to theme chooser they are not showing up. In the theme desc on the market it says you need theT-mobile theme system build in your OS, how do I check to see if that is? I am 7.0.3

Also, is there a way to get these themes to work on other roms?

thanks